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Phytopatology  [ Natural sciences - Botany ]
Synonym: Plant pathology

Dictionary of botanic terminology - index of names
Adjective: Phytopathologic or Phytopathological
Adverb: Phytopathologically
Noun: Phytopatholoist
     
  The science of diseases to which plants are liable, their possible nature, causes, symptoms, classification, diagnoses, management and safe use of pesticedes.  
     
The term phytopathology (also called plant pathology) derives from the combination of three Greek words: "Phyton" meaning plant, "pathos" meaning suffering, and "logos" meaning discourse.

Many different areas of biology and agronomy are involved in the study of plant diseases, for example plant physiology (plant resistance mechanisms), biochemistry, mycology and fungal physiology, (the study of fungi), Phytobacteriology (the study of bacteria in relation to plants), Nematology (the study of parasitic nematodes), Virology (the study of viruses causing plant diseases) genetics of the host-pathogen relationship and plants resistance.
Phytopathology includes all infectious agents that attack plants and abiotic disorders, but does not include herbivory by insects, mammals and parasitic angiosperms (plants that parasitize other plants)


Plant biotic pathogens  include:

  • Fungi: the most common pathogens (root rot fungi, moulds, rusts, and mildews).
  • Oomycetes: (Water Moulds)
  • Bacteria: prokaryotic organsisms which include as many as 18 genera.
  • Mycoplasmas:
  • Viruses: more than 700 are plant pathogens
  • Nematodes: (Roundworms) - both as pathogens and vectors.
  • Viroids: small, single-stranded RNA pathogens causing a dozen plus diseases.

Natural abiotic disorders include: 

Man-made:

Compare with: Phytoparasitology

     

 

 

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